Nancy Álvarez (born 10 October 1951) is a Dominican singer, television personality, and licensed clinical psychologist, sexologist, and family therapist.

[1] She is best known for hosting the talk show ¿Quién Tiene La Razón?, where she helped counsel families and couples with their interpersonal problems.

Álvarez began her professional career as a performer at the age of 15 and soon became the lead singer with Michel Camilo's band, an international group which toured in the 1970s.

By the 1980s, following her studies, she began a new career a television producer and host, specializing in personal and family relationships and sex therapy.

Among the number of programs she produced was Solo para Adultos (Adults Only) (1985–89) and the section Prohibido (Forbidden) which, for four years, was a part of the show 100 Grados (100 Degrees).